if i swpa my engine for a b18c...what exhaust do i buy..do i buy it for a type r integra or a dx honda civic like i have...are the exhaust interchangable.. like as long as it fits into the header it will work?

 

Get the exhaust for your car, get the header for the car the engine came out of. depending on the exact placement of the engine you might have to either bend the piping a bit to get it to fit or just go to a muffler shop and have them make a custom exhaust for you which would be cheapest anyway.

 

^+1... I would just go to a Midas or something, they'll make a custom exhaust for you.

u just need to get some kind of muffler and cat

 

and a resonator...